Viking Heritage February 09, 2018 1973 1974 1978 aerogramme europa Isle of Man maxicard ofdc + Viking 1973 1974 1978 aerogramme europa Isle of Man maxicard ofdc Viking
Mohenjo-daro January 21, 2016 1973 1976 2002 2014 aerogramme Japan joint issue ofdc Pakistan + unesco 1973 1976 2002 2014 aerogramme Japan joint issue ofdc Pakistan unesco
Carthage June 10, 2014 1973 1985 France mosaic postcard Tunisia + unesco 1973 1985 France mosaic postcard Tunisia unesco
Silk Road February 06, 2013 1973 1994 2012 cachet China +1 Great Britain metal mini sheet pex postcard 1973 1994 2012 cachet China Great Britain metal mini sheet pex postcard
Rapa Nui December 19, 2012 1973 1996 cancel Chile monolith + postcard 1973 1996 cancel Chile monolith postcard
Archaeological Discoveries February 06, 2011 1972 1973 1974 1975 antler +3 bronze Bronze Age ceramic gold ofdc semi postal slogan cancel Switzerland 1972 1973 1974 1975 antler bronze Bronze Age ceramic gold ofdc semi postal slogan cancel Switzerland